This tutorial may be outdated. It is no longer recommended for beginners, and may need modifications to code or hardware that is not indicated in the tutorial.

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Files & Downloads

AVRDUDE programming software for USB-Serial adapters

If you have an onboard serial port (like a PC or some laptops) you can just use the default install of AVRDUDE. However, if you have a Mac or laptop or PC without a serial port and you want to use a USB/Serial adaptor then you should upgrade the default install with these files. Then you can specify a slow-down delay necessary to make it work with such adaptors.
To download non-modified AVRDUDE programming software, please follow the instructions of the Software page.

USB/Serial converter driver

If you're using the PL2303-chipset adaptor on a MacOS X machine, download this driver and install it, NOT the one that comes with the device!

Firmware

Here is a zip file with all the firmware (hex and source and Makefile)

Hardware

Here are the EagleCAD schematic and board layout files!
This guide was first published on Jul 17, 2013. It was last updated on Oct 17, 2018. This page (Download) was last updated on May 04, 2015.